KS H ISO 5546-2006 Caseins and caseinates-Determination of pH(Reference method)《酪蛋白和酪蛋白酸盐 pH值的测定(基准方法)》.pdf

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1、 KSKSKSKS KSKSKSK KSKSKS KSKSK KSKS KSK KS 2006 11 29 http:/www.kats.go.krKS H ISO 5546 pH () KS H ISO 5546: 2006 (2011 ) H ISO 5546: 2006 : ( ) ( ) ( ) ( ) : (http:/www.standard.go.kr) : : 2001 12 31 : 2006 11 29 : 2011 12 29 2011-0652 : : ( 02-509-7273) (http:/www.kats.go.kr). 10 5 , . ICS 67.100.

2、99 KS pH () H ISO 5546: 2006(2011 ) Caseins and caseinates Determination of pH(Reference method) 1979 1 ISO 5546 Caseins and caseinates Determination of Ph(Reference method) , . ISO 5546 ISO/TC 34 , 1976 9 . IDF( ) AOAC( ) . FAO/WHO( ), IDF AOAC(Official Methods of Analysis) . 1. ( ) pH . 2. . . KS

3、H ISO 707 ISO 3310 1 Test sieves Technical requirements and testing Part 1: Test sieves of metal wire cloth 3. . 3.1 pH 20 pH 4. pH pH . 5. , (8.2) . 5.1 pH (6.2) . 20 pH pH . pH 4 (phthalate buffer solution) 9 (borax buffer solution) , pH 7 (phosphate buffer solution) . 6. 6.1 0.1 g . H ISO 5546: 2

4、006 2 6.2 pH (calomel electrode) 0.05 pH . 6.3 0.5 . 6.4 100 mL . 6.5 50 mL 6.6 (8.1.4 ) , . . 6.7 ISO 3310 1 , 500 m, 200 mm . 6.8 6.9 (6.8) 250 mL . 7. KS H ISO 707 . 8. 8.1 8.1.1 ( ). 8.1.2 50 g (6.7) . 8.1.3 50 g 8.1.1 . 8.1.4 (6.6) 50 g . . 8.1.5 (8.2) . 8.2 8.2.1 pH 20 pH . 1. 20 (8.2.2.1 8.2.

5、2.2 ). 2. 30 pH . 8.2.2 8.2.2.1 (6.4) (8.1) 5.0 g 0.1 g 20 30 mL (7.0 g 42 mL ). 10 20 20 . 8.2.2.2 (6.9) 95 mL (8.1) 5.0 g (6.8) 30 . 20 20 . 8.2.3 pH 8.2.3.1 (6.5) pH (6.2) pH . 8.2.3.2 20 mL (6.5) pH (6.2) pH . H ISO 5546: 2006 3 9. 9.1 pH 9.1.1 pH pH 0.1 pH . 9.1.2 pH pH 0.01 pH . 9.2 9.2.1 2 ,

6、0.1 pH , 0.05 pH 20 1 . 9.2.2 2 , 0.3 pH , 0.15 pH 20 1 . 10. . . pH ( ) 153787 1 92 3(13) (02)26240114 (02)2624 01489 http:/ KSKSKSSKSKS KSKS SKS KSKS SKSKS KSKSKSKorean Agency for Technology and Standards http:/www.kats.go.kr KS H ISO 5546: 2006 Caseins and caseinatesDetermination of pH(Reference method)ICS 67.100.99

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